We found 8 dictionaries that define the word permanentness:

General (5 matching dictionaries)

1. permanentness: Merriam-Webster
2. permanentness: Collins English Dictionary
3. permanentness: Dictionary.com
4. permanentness: TheFreeDictionary.com
5. permanentness: Wiktionary

Business (1 matching dictionary)

6. permanentness: Legal dictionary

Computing (1 matching dictionary)

7. permanentness: Encyclopedia

Medicine (1 matching dictionary)

8. permanentness: Merriam-Webster Medical Dictionary

(Note: See permanent as well.)

Definitions from Wiktionary (permanentness) ▸ noun:  The quality of being permanent. Similar: permanency, permanence, perpetuality, perpetualness, lastingness, unfadingness, perennity, perdurableness, durability, semipermanence, more... Opposite: impermanence, transience, ephemerality, instability ▸ Words similar to permanentness ▸ Usage examples for permanentness ▸ Idioms related to permanentness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing permanentness ▸ Words that often appear near permanentness ▸ Rhymes of permanentness ▸ Invented words related to permanentness